Display device



B. E. NIBERT DISPLAY DEVICE Feb. 24, 1953 Filed July 17, 1950 2 SHEETS-SHEET 1 In ueutor BenjamIh E. Niber! B. E. NIBERT DISPLAY DEVICE Feb. 24, 1953 2 SHEETS-SHEET 2 Filed July 1'7, l 950 Inventor Benjamin E. Niberr Patented Feb. 24, 1953 UNITED STATES PATENT iOFFICE Benjamin E. Nibert, Edinburg, Tex.

Application July 1'7, 1950, Serial No. 174,220

The present invention relates to new and useful improvements in display devices and more particularly to an apparatus used in demonstrating the durability of shockproof and waterproof watches.

An important object of the invention is to provide mechanism for periodically raising a watch and dropping thewatch onto a hard surface to demonstrate its shock resisting qualities and from which surface the watch then falls into a container of water to demonstrate the waterproof qualities of the watch.

A further object of the invention isto provide a novel motor operated hoisting device for the watch and including a pulley driven by the motor and on which a rope or other flexible member is wound together with means for releasing the pulley from its driving engagement with the motorto suddenly drop the watch after the latter has been raised to a predetermined height.

A still further object is to provide an apparatus of this character of simple and practical construction, which is eflicient and reliable in operation, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a perspective view. I

Figure 2 is a vertical sectional view taken substantially on a line 2-2 of Figure 1.

Figure 3 is a fragmentary vertical sectional view takenon a line 3-3 of Figure 2.

Figure 4 is an enlarged fragmentary sectional view taken on a line 4-4 of Figure 2, and

Figure 5 is a vertical sectional view showing the pulley in disengaged position for dropping the watch.

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a display housing having a platform 6 at its bottom and an opening I in the lower front wall of the housing.

An electric motor 8 is suitably supported in the upper portion of housing 5 with its shaft 9 positioned horizontally. A shaft extension I is provided with a sleeve ll secured to the shaft 9 and a wheel or disk [2 is suitably fixed to shaft extension I0 and is provided with an eccentric pin 13.

Claims. (CI. 35-49) A pulley or drum I4 is freely mounted on shaft extension Ill for rotation independently thereof and to one side of the pulley is secured a ring [5 by spacing blocks l6.

One of the spacing blocks [6 is formed with a cylinder [1 in which a pin [8 is slidable for radial inward and outward movement with respect to pulley [4, the pin being limited in its inward movement by a stop l9 secured to the adjacent side of the pulley.

A cord or similar flexible member is secured at one end to pulley M for winding thereon, the cord extending downwardly through a guide 2| in the lower portion of a trip member 22 of open 1 frame construction which is pivoted at one lower corner on a pin 23 secured in the upper portion of housing 5. A watch or other object 24 forming the subject of the demonstration is attached to the lower end of cord 20 and a weighted body 25 is secured to the cord immediately above the watch for engaging guide 2| during a rotation of the pulley to raise the watch.

A bracket 26 rises from the corner of the trip member 22 opposite from its pivot 23 and supports a pin or shaft 21' in an upstanding position and on which a roller 28 is journaled in a position for engaging ring I 5.

A second roller 29 is rotatably supported at the lower end of a spring arm or hanger 30 suitably secured at its upper end to the top of housing 5 and tensionally holding pulley l4 inwardly on shaft extension [0 with the pin IS in the path of rotation of eccentric pin 13. Eccentric pin I3 is beveled at one side, as indicated at 3| to facilitate disengagement of pin l8 therewith upon an outward sliding movement of the pulley l4 on the shaft extension Ill.

A vessel 32 suitable for containing water is placed on platform 6 and a sloping plate 33 is supported in the neck or open top of the vessel in the path of downward movement of the watch 2 A shield 34 rises from the rear and sides of the plate 33 and the plate 33 is of an area sub stantially less than the diameter of the neck of the vessel 32 in order that the watch, after striking the plate will slide downwardly into the water contained in the vessel.

In the operation of the device, the weight of trip frame 22 normally maintains the same in a lowered position with its lower free edge resting on a stop pin 35. Spring arm or hanger 30 and roller 29 hold pulley I 4 inwardly on shaft extension ID to move radial pin l8 in the path of eccentric pin I3.

Motor 8 is constantly driven so that with pin l3 engaging pin I8 pulley M will be driven to wind rope 20 thereon and to lift a watch 24 attached .to the lower end of the rope until weight 25 engages guide 2|. Trip frame 22 will then swing upwardly at its free end on pin 23 and the tilting movement of the frame will cause roller 28 to push against ring and slide pulley l4 outwardly on shaft extension [0 to disengage pins.

I3, and the length of cord is arranged to stop unwinding movement of the pulley when the pin' it! is uppermost so that when the pulley stops the.

pin I8 will drop downwardly on stop M for engagement by pin l3=up0n its-next-revolution to again; rotate the pulley and raise the watch.

In-.view of theforegoing descriptiontaken in conjunction with the accompanying drawings. it

is believed that a'clear understanding of the device-will-bequite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It-is to be understood, however, that even though there is herein shown and described. a preferred embodiment of the invention the same is susceptible to certain changes fully compre hended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A'display device-comprising-amotor driven shaft, a hoisting-device including a drum slidably journaled onthe shaft and-having a vertically movable flexiblemember connected to the drum for winding 1 thereon, clutch means connecting the shaft and drumto' each other in driving relation upon a sliding movement of the drum in-one direction, a vertically swingable drumshifting member underlying thedrum and movable into and out ofengagement with the drum to slide the latter out ofdriving'relation with the shaft, and means carried by the flexible member and engaging the drum-shifting member upon a predetermined hoisting movement of said flexible-member to slide the drum out'of driving relationwith the shaft.

2. A-.display device comprising a-motor driven shaft, a hoisting device including a drum slidably journaled on. the'shaft and having a flexible memberi connected to the drum for winding thereon, clutch means connecting the shaft and drum to each .other indriving relation upona sliding movement of the drum in one direction, a pivoted guide for the flexible member, means carried by the guide and engaging the drum to slide the drum .into a de-clutching position,v and 4 means carried by the flexible member and engaging the guide upon a predetermined hoisting movement of said member to actuate the guide in a drum de-clutching movement.

3. A device for demonstrating the reaction of objects to shock and comprising a hoisting mechanism including a slidable drum and a raised and lowered flexible member attached to the drum and adapted for attaching an object to be demonstrated thereto, a continuously operated prime mover, driving means between the prime mover and the drum, spring means bearing against one side of the drum and holding the drum in driving relation with the prime mover to raise the object, a rockable member bearing against an opposite side of the drum, and actuating means for the rockable member carried by said flexible member to move the drum out of driving relation with the prime mover upon a pre-determined hoisting movement of the flexible member to drop the object.

4. A device'for demonstrating the reaction of objeets to shock and comprisinga power driven shaft, a drum slidable and freely rotatable on theshaft, clutch means connecting the drumto the shaft, a flexible member connected to the drum for winding thereon to lift an object at-- tached to the flexible member, and de-clutching means for the drum and including a rockable member, means carried by the rockable member engaging the drum to slide the latter in one direction out of driving engagement with the shaft, spring means sliding the drum in an opposite direction into driving engagement with the shaft,

guide means for the flexible member carried by said rockable member, and a stop on the flexiblemernber engaging the rockable member to move the latter-into de-clutching position and to free the drum for dropping the object into demonstrating position upon a predetermined hoisting REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number 7 Name Date 29%,333 Pugh Feb. 26, 1884 309,314 Post Dec.- 16, 1884 398,502 Heidenreich Feb. 26,- 1889 526,999 Grover et al Oct. 9, 1894 2,532,167 Hooker Nov. 28, 1950 

